Anti-cracking pipe expanding device
By using a crack-resistant pipe flaring device, which combines a conical die head and a limiting block to spray lubricating oil, along with the control of an electric push rod and a lifting rod, the problem of cracks during the pipe flaring process is solved, achieving high-quality flaring results and stable connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING HENKO AUTO PARTS
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-02
AI Technical Summary
Cracks are prone to occur during the flaring process of pipe fittings, especially in thin-walled pipes or brittle materials, which affects the structural strength and connection stability of the pipe fittings.
A crack-preventing pipe flaring device was designed. Through the cooperation of a conical die head and a limiting block, lubricating oil is sprayed, and the control of an electric push rod and a lifting rod is combined to ensure that the pipe remains horizontal and stable during flaring, avoiding excessive flaring.
It effectively reduces the risk of cracking during the pipe flaring process, improves flaring quality and connection strength, and enhances the universality and practicality of the device.
Smart Images
Figure CN224309476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flaring device technology, specifically to a pipe flaring device to prevent cracking. Background Technology
[0002] Pipe flaring is an important processing technique widely used in various industries and fields such as petroleum, chemical, shipbuilding, and construction. This process widens the end of a pipe fitting, enabling it to connect effectively with other pipe fittings, thereby increasing the connection area and improving the strength and stability of the connection. However, during the flaring process, the pipe fitting is susceptible to cracking due to radial tension, especially in thin-walled pipes or brittle materials. Cracks not only affect the appearance of the pipe fitting but, more importantly, severely weaken its structural strength, potentially leading to leakage or breakage during subsequent use. Therefore, improving existing pipe flaring devices and designing a new crack-resistant flaring device to address these technical deficiencies and enhance the overall practicality of pipe flaring systems is crucial. Utility Model Content
[0003] The purpose of this utility model is to provide a crack-resistant pipe fitting flaring device. This crack-resistant pipe fitting flaring device can be adapted to various specifications of pipe fittings, facilitates the disassembly and replacement of the conical die head, and prevents pipe fitting cracking by spraying lubricating oil and limiting the maximum flaring through the conical die head before flaring. At the same time, it keeps the pipe fitting horizontal and stable during flaring, improves the flaring quality of the pipe fitting, and improves the overall practicality of the crack-resistant pipe fitting flaring device, thereby solving the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A crack-resistant pipe flaring device includes a main body. A fixing frame is fixedly connected to the top of the main body. A first electric push rod is fixedly connected to the top of the main body and to one side of the fixing frame. The end of the first electric push rod near the fixing frame is the driving end and is fixedly connected to a fixing rod. A conical die head is provided on the side of the fixing rod near the fixing frame. A limiting block is provided on the outer side of the conical die head. A third electric lifting rod is fixedly connected to the top of the fixing frame. The end of the third electric lifting rod near the main body is the driving end and is fixedly connected to a fixing block. An oil can is fixedly connected to the bottom of the fixing block and to the top of the main body. Spray nozzles are fixedly connected to both ends of the oil can.
[0006] As a preferred embodiment of this utility model, the fixed rod has a threaded groove on the side near the fixed frame, the conical die head is fixedly connected to a first threaded block on the side near the fixed rod, and the first threaded block is fixedly connected to a second threaded block on the side near the fixed rod. The threaded groove and the second threaded block are designed to be compatible.
[0007] As a preferred embodiment of this utility model, a limiting groove is provided on the side of the limiting block near the fixing frame, and a threaded hole is provided on the side of the limiting groove near the fixing rod. The threaded hole is designed to be compatible with the first threaded block.
[0008] As a preferred embodiment of this utility model, a first electric lifting rod is provided inside the main body and at the end of the fixed frame away from the first electric push rod, and a lifting platform is fixedly connected to the driving end of the first electric lifting rod.
[0009] As a preferred embodiment of this utility model, a second electric lifting rod is fixedly connected inside the lifting platform, and a lifting block is fixedly connected to the drive end of the second electric lifting rod.
[0010] As a preferred embodiment of this utility model, two sets of relatively distributed second electric push rods are fixedly connected to the top of the lifting platform and to the side of the lifting block near the fixed frame. The ends of the two sets of second electric push rods that are close to each other are the driving ends and are fixedly connected to clamps.
[0011] As a preferred embodiment of this utility model, a third electric push rod is fixedly connected to the side of the second electric push rod away from the second electric lifting rod and located at the top of the lifting platform. The end of the third electric push rod near the clamping plate is the driving end and is fixedly connected to an electric gripper.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this utility model, through the design of the main body, the first electric push rod, the fixing rod, the threaded groove, the conical die head, the first threaded block, the second threaded block, the limiting block, the limiting groove, the threaded hole, the fixing frame, the third electric lifting rod, the fixing block, the oil can, and the nozzle, when this anti-cracking pipe flaring device is put into use, the appropriate size of the conical die head and the limiting block are selected according to the actual needs of the pipe fitting, which can adapt to various specifications of pipe fittings, improve universality, facilitate disassembly and replacement, and improve practicality. When the power is turned on, the third electric lifting rod drives the oil can to descend to be level with the pipe fitting and the conical die head. Two sets of nozzles spray lubricating oil into the conical die head and the pipe fitting inside the limiting block, thereby reducing the coefficient of friction and surface tensile stress, thereby reducing the risk of pipe opening cracking. The first electric push rod pushes the conical die head to gradually flare the pipe fitting. The limiting block limits the maximum flare of the pipe opening, preventing the pipe opening from exceeding the maximum flare and cracking, further reducing the risk of pipe opening cracking and improving the flaring quality of the pipe fitting.
[0014] 2. In this utility model, through the design of the main body, the first electric push rod, the conical die head, the limiting block, the first electric lifting rod, the lifting platform, the second electric lifting rod, the lifting block, the second electric push rod, the clamping plate, the third electric push rod, and the electric gripper, when the anti-cracking pipe flaring device is put into use, the power is turned on, the pipe is placed between the two sets of clamping plates on the lifting platform, the driving end of the first electric lifting rod rises, thereby driving the lifting platform to rise, so that the height of the tool on the lifting platform matches the limiting block. The lifting block and the electric gripper keep the pipe horizontal, which is convenient for flaring and can also hold the pipe. The two sets of clamping plates further hold the pipe, keeping the pipe horizontal and stable during flaring, thus improving the flaring quality. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the conical die head structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the limiting block structure of this utility model.
[0018] In the diagram: 1. Main body; 2. First electric push rod; 201. Fixed rod; 202. Threaded groove; 3. Conical mold head; 301. First threaded block; 302. Second threaded block; 4. Limiting block; 401. Limiting groove; 402. Threaded hole; 5. First electric lifting rod; 501. Lifting platform; 6. Second electric lifting rod; 601. Lifting block; 7. Second electric push rod; 701. Clamping plate; 702. Third electric push rod; 703. Electric gripper; 8. Fixed frame; 801. Third electric lifting rod; 802. Fixed block; 9. Oil can; 901. Nozzle. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] Example:
[0021] Please see Figures 1-3 This utility model provides a technical solution:
[0022] A crack-resistant pipe flaring device includes a main body 1. A fixing frame 8 is fixedly connected to the top of the main body 1. A first electric push rod 2 is fixedly connected to the top of the main body 1 and to one side of the fixing frame 8. The end of the first electric push rod 2 near the fixing frame 8 is the driving end and is fixedly connected to a fixing rod 201. A conical die head 3 is provided on the side of the fixing rod 201 near the fixing frame 8. A limiting block 4 is provided on the outer side of the conical die head 3. A third electric lifting rod 801 is fixedly connected to the top of the fixing frame 8. The end of the third electric lifting rod 801 near the main body 1 is the driving end and is fixedly connected to a fixing block 802. An oil can 9 is fixedly connected to the bottom of the fixing block 802 and to the top of the main body 1. Both ends of the oil can 9 are fixedly connected to nozzles 901. When the crack-resistant pipe flaring device is activated... When in use, the power is turned on, and the driving end of the first electric push rod 2 pushes the fixed rod 201 to move towards the fixed frame 8, thereby driving the conical die head 3 to move towards the fixed frame 8. As it moves, the conical die head 3 extends into the pipe fitting, thereby gradually flaring the pipe fitting and reducing the risk of pipe opening cracking. The limiting block 4 limits the maximum flaring of the pipe opening to prevent the pipe opening from exceeding the maximum flaring and cracking. Before flaring the pipe fitting, the driving end of the third electric lifting rod 801 descends, thereby driving the fixed block 802 to descend, thereby driving the oil can 9 to descend to be level with the pipe fitting and the conical die head 3. The two sets of nozzles 901 spray lubricating oil into the conical die head 3 and the pipe fitting inside the limiting block 4, thereby reducing the coefficient of friction and surface tensile stress, thereby further reducing the risk of pipe opening cracking and improving the flaring quality of the pipe fitting.
[0023] Furthermore, a threaded groove 202 is provided on the side of the fixing rod 201 near the fixing frame 8. A first threaded block 301 is fixedly connected to the side of the conical die head 3 near the fixing rod 201. A second threaded block 302 is fixedly connected to the side of the first threaded block 301 near the fixing rod 201. The threaded groove 202 and the second threaded block 302 are designed to fit each other. A limiting groove 401 is provided on the side of the limiting block 4 near the fixing frame 8. A threaded hole 402 is provided on the side of the limiting groove 401 near the fixing rod 201. The threaded hole 402 is connected to the first threaded block 301 near the fixing rod 201. A threaded block 301 is designed to be compatible. When the anti-cracking pipe flaring device is put into use, the appropriate size of the conical die head 3 and the limiting block 4 can be selected according to the actual needs of the pipe fitting. It can be adapted to various specifications of pipe fittings, which improves its versatility. The conical die head 3 is inserted into the inside of the limiting groove 401, and then the conical die head 3 and the limiting block 4 are connected through the first threaded block 301 and the threaded hole 402. Then the fixing rod 201 is connected to the conical die head 3 through the threaded groove 202 and the second threaded block 302, which facilitates disassembly and replacement and improves its practicality.
[0024] The main body 1 has a first electric lifting rod 5 located inside the fixed frame 8 at the end furthest from the first electric push rod 2. A lifting platform 501 is fixedly connected to the drive end of the first electric lifting rod 5. A second electric lifting rod 6 is fixedly connected inside the lifting platform 501. A lifting block 601 is fixedly connected to the drive end of the second electric lifting rod 6. Two sets of opposing second electric push rods 7 are fixedly connected to the top of the lifting platform 501 on the side of the lifting block 601 closest to the fixed frame 8. The ends of the two sets of second electric push rods 7 that are close to each other are drive ends and are both fixedly connected to clamps 701. A third electric push rod 702 is fixedly connected to the side of one set of second electric push rods 7 furthest from the second electric lifting rod 6 and located at the top of the lifting platform 501. The end of the third electric push rod 702 that is close to the clamps 701 is a drive end and is fixedly connected to an electric gripper 703. When the... When the cracked pipe flaring device is put into use, the power is turned on, and the pipe is placed between the two sets of clamping plates 701 on the lifting platform 501. The driving end of the first electric lifting rod 5 rises, thereby driving the lifting platform 501 to rise, so that the height of the tool on the lifting platform 501 matches the limit block 4. The driving end of the second electric lifting rod 6 rises, thereby driving the lifting block 601 to rise, thereby driving the pipe to rise. The driving end of the third electric push rod 702 pushes the electric gripper 703 to move towards the pipe. The electric gripper 703 clamps the pipe and keeps it horizontal, aligning it with the limit groove 401, which facilitates flaring. The driving ends of the two sets of second electric push rods 7 move towards one end that is closer to each other, thereby driving the two sets of clamping plates 701 to move towards one end that is closer to each other, thereby further clamping the pipe and keeping it horizontal and stable during flaring, thus improving the flaring quality.
[0025] In this embodiment, the specific implementation scenario is as follows: In actual use, when the anti-cracking pipe flaring device is put into use, a suitable size conical die head 3 and limiting block 4 are selected according to the actual needs of the pipe fitting. This allows it to adapt to various specifications of pipe fittings, improving its versatility. The conical die head 3 is inserted into the limiting groove 401, and then the conical die head 3 and the limiting block 4 are connected through the first threaded block 301 and the threaded hole 402. The fixing rod 201 is then connected to the conical die head 3 through the threaded groove 202 and the second threaded block 302, facilitating disassembly and replacement and improving practicality. The pipe fitting is placed... Between the two sets of clamping plates 701 on the lifting platform 501, the driving end of the first electric lifting rod 5 rises, thereby driving the lifting platform 501 to rise, so that the height of the tool on the lifting platform 501 matches the limit block 4. The driving end of the third electric lifting rod 801 descends, thereby driving the fixing block 802 to descend, thereby driving the oil can 9 to descend to be level with the pipe fitting and the conical die head 3. The two sets of nozzles 901 spray lubricating oil into the conical die head 3 and the pipe fitting inside the limit block 4, thereby reducing the coefficient of friction and surface tensile stress, thereby reducing the risk of pipe opening cracking. The driving end of the third electric lifting rod 801... The moving end rises, thereby causing the fixed block 802 to rise, which in turn causes the oil can 9 to rise. The driving end of the second electric lifting rod 6 rises, thereby causing the lifting block 601 to rise, which in turn causes the pipe fitting to rise. The driving end of the third electric push rod 702 pushes the electric gripper 703 to move towards the pipe fitting. The electric gripper 703 clamps the pipe fitting and keeps it horizontal, aligning it with the limiting groove 401 for easy flaring. The driving ends of the two sets of second electric push rods 7 move towards each other, thereby causing the two sets of clamping plates 701 to move towards each other, further clamping the pipe fitting. The device holds the pipe fitting horizontally and stably during flaring, improving the flaring quality. The driving end of the first electric push rod 2 pushes the fixed rod 201 to move towards the fixed frame 8, thereby driving the conical die head 3 to move towards the fixed frame 8. As it moves, the conical die head 3 extends into the pipe fitting, thereby gradually flaring the pipe fitting and reducing the risk of pipe opening cracking. The limiting block 4 limits the maximum flaring of the pipe opening to prevent the pipe opening from exceeding the maximum flaring and cracking. Compared with existing anti-cracking pipe fitting flaring devices, this utility model improves the overall practicality of the anti-cracking pipe fitting flaring device through its design.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pipe fitting flaring device for preventing cracking, comprising a main body (1), characterized in that: A fixed frame (8) is fixedly connected to the top of the main body (1). A first electric push rod (2) is fixedly connected to the top of the main body (1) and to one side of the fixed frame (8). The first electric push rod (2) is driven at one end near the fixed frame (8) and is fixedly connected to a fixed rod (201). A conical mold head (3) is provided on one side of the fixed rod (201) near the fixed frame (8). A limiting block (4) is provided on the outside of the conical mold head (3). A third electric lifting rod (801) is fixedly connected to the top of the fixed frame (8). A fixed block (802) is fixedly connected to one end of the third electric lifting rod (801) near the main body (1). An oil can (9) is fixedly connected to the bottom of the fixed block (802) and to the top of the main body (1). A nozzle (901) is fixedly connected to both ends of the oil can (9).
2. The anti-cracking pipe flaring device according to claim 1, characterized in that: The fixed rod (201) has a threaded groove (202) on the side near the fixed frame (8). The conical die head (3) is fixedly connected to a first threaded block (301) on the side near the fixed rod (201). The first threaded block (301) is fixedly connected to a second threaded block (302) on the side near the fixed rod (201). The threaded groove (202) and the second threaded block (302) are designed to be compatible.
3. The anti-cracking pipe flaring device according to claim 2, characterized in that: The limiting block (4) has a limiting groove (401) on the side near the fixing frame (8), and the limiting groove (401) has a threaded hole (402) on the side near the fixing rod (201). The threaded hole (402) is designed to be compatible with the first threaded block (301).
4. The anti-cracking pipe flaring device according to claim 3, characterized in that: The main body (1) is provided with a first electric lifting rod (5) at the end of the fixed frame (8) away from the first electric push rod (2), and the driving end of the first electric lifting rod (5) is fixedly connected to a lifting platform (501).
5. The anti-cracking pipe flaring device according to claim 4, characterized in that: The lifting platform (501) is internally fixedly connected to a second electric lifting rod (6), and the driving end of the second electric lifting rod (6) is fixedly connected to a lifting block (601).
6. The anti-cracking pipe flaring device according to claim 5, characterized in that: Two sets of relatively distributed second electric push rods (7) are fixedly connected to the top of the lifting platform (501) and to the side of the lifting block (601) near the fixed frame (8). The two sets of second electric push rods (7) are driven at the ends that are close to each other and are fixedly connected to clamps (701).
7. The anti-cracking pipe flaring device according to claim 6, characterized in that: A third electric push rod (702) is fixedly connected to the side of the second electric push rod (6) away from the second electric lifting rod (6) and at the top of the lifting platform (501). The end of the third electric push rod (702) near the clamping plate (701) is the driving end and is fixedly connected to the electric gripper (703).